Pneumatic tire.



( No Model.)

- Patente'd jur-y ls, |9ol. .1. MooMY.

PNEUMATIC TIRE.

(Application leq Feb. 16, 1901.)

fai/fafa* PATENT OEEICE.

JOSEPH G. MOOMY, OF ERIE, PENNSYLVANIA, ASSIGNOR TO LAKE sHoEE RUBBERCOMPANY, OF SAME PLACE.

PNEUMATIC TIRE.

SPECIFICATION forming part f Letters vPa-.iet N0. 67 8,504, dated July16, 1901. Application filed February 16, 1901. Serial No. 47,678.(No-model.)

To all whom t may concern:

Be it known that I, JOSEPH G. MOOMY, a citizen of the United States,residing at Erie, in the county of Erie and State of Pennsyl- Vania,have invented certain new and useful Improvements in Pneumatic Tires;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which 1o it appertains to make and use the same.

This invention relates to pneumatic tires and the process of makingsame; and it consists of certain improvements in the constructionthereof, as will be hereinafter fully de- I5 scribed, and pointed out inthe claims.

The invention is illustrated'in the accompanying drawings, as followsFigure 1 shows an annular section of a tire embodying my preferredconstruction. Fig. o 2 shows a section of a fragment of a tire, showinga modified form. Fig. 3 is a like view, also showing a modiiied form.

In the tire, A marks the air-tube, B preferably a textile fabric, and Can outer covering of rubber.

made of vulcanizing stock and vulcanized with the outer cover; but Iprefer that it be vulcanized separately from the cover and then coatedwith cement and united with the .3o cover in the process ofvulcanization. It may, however, be loose from the cover and may, ifdesired,`be removable from the cover.

I prefer, however, as before stated, that it be vulcanized prior to thevulcanization of the 3 5 cover and secured to the cover byvulcanization. The end a of the air-tube is placed within the end a ofsaid tube, and a sleeve D, of non-vulcanizing material, preferablycaoutchouc, is placed between the lapped por- 4o ble. This constructionassists somewhat in the process of manufacture. sleeve D to be ofsufficient length to a little more than fill the lapped portion of thetube, so as to pass beyond the end a', as at d. With this union of theair-tube it can be fully tested before the tire is made up, and as thestock forming the sleeve D is n ot changed by 5o the vulcanizing-heat noblisters or air-pas- The inner air-tube may beV tions of the tube. lIfdesired, the end of the i sleeve D may be closed at d, forminga thim- Iprefer the sages are made in the completion of the tire. Where the endsof the tire are directly joined and united by vulcanization, as in theordinary construction of to-day, blisters or air; passages are apt to beformed during the process of vulcanization of the tire, so that a corn-vplete tire is often spoiled in this way. With my construction,especially where the air tube is vulcanized previously to the forming ofthe remainder of the tire, there is no chance 6o of failure of the tube,and if the tube is properly tested before the formation of the tire nofailure in the tire occurs during vulcanization by reason of thecollapse of the air-tube. This feature, of course, is particularlydesirable where the outer cover is formed of a complete annulus andvulcanized in this way over the tube.

In Fig. 2 I show a modified construction in that the thimble portion disomitted, and in 7o Fig. 3 I show a modified construction, where'- in thesleeve D is placed outside of the ends a2 a3 of the tube A. A wall ofnon-vulcanizing material of the sleeve cl2 extends down between the endsof the tube.

What I claim as new isl. In a pneumatic tire, the combination of aninner air-tube; a sleeve of non-vulcanizing and adhesive materialjoining the ends of said tube; and an outer sleeve. 8o

2. In a pneumatic tire, the combination of an inner air-tube; a sleeveof non-vulcanizing and adhesive material joining the ends of said tube;and an outer cover vulcanized and forming a complete annulus over saidtube.

3. In a pneumatic tire7 the combination of an inner air-tube; a sleeveof non-vulcanizing adhesive material joining the ends of said' tube; andan outer cover to which the body of the tube is secured byvulcanization. 9o

4. In a pneumatic tire, the combination of an inner air-tube; a sleeveof non-vulcanizing adhesive material joining the ends of said tube, thebody of said tube being vulcanized prior to the formation of the tire;and an outer cover.

5. In a pneumatic tire, the combination of an inner air-tube; a sleeveof non-vulcanizing adhesive material joining the ends of said tube, thebody of said tube being vulcanized roo prior to the formation of thetire; and an outer cover vulcanized and forming a complete annulus oversaid tube.

6. In a pneumatic tire, the combination of an inner air-tube; a sleeveof non-vulcanizin g adhesive material joining the ends of said tube, thebody of said tube being vulcanized prior to the formation of the tire;and an outer cover vulcanized and forming a complete annulus over thetube, the body of said tube being secured to the said cover byvnlcanization.

7. In a pneumatic tire, the combination of an inner air-tube having oneof its ends, a, lapped and within its other end, a'; a sleeve ofnon-vulcanizing adhesive material joining the ends of said tube, saidsleeve extending through and between the lapped portion of the ends ofthe tube; and an outer cover.

S. In a pneumatic tire, the combination of an inner air-tube having oneof its ends, et, lapped by and within its other end, a; and a sleeve ofnon-vulcanizing adhesive material joining the ends of said tube, saidsleeve eX- tending through and between the lapped portion of the tube,and having a portion, d', beyond the end, ai.

9. In a pneumatic tire, the combination of an inner air-tube having oneof its ends, a, lapped by and Within its other end, a'; a sleeve ofnon-vulcanizing adhesive material joining the ends of said tube, saidsleeve extending through and between the lapped portion of the ends ofthe tube; an outer cover; and the thimble portion, d, extending from theend of the sleeve.

10. In a pneumatic tire, the combination ofan inner air-tube, the end,a, of said tube being placed within and lappingr by the end, a', of saidtube; a sleeve, D, of non-vulcanizing adhesive material arranged betweenthe lapped ends of the air-tube; and an outer cover vulcanized over saidtube.

11. In a pneumatic tire, the combination of an inner air-tube, the end,a, of said tube being placed within and lapping by the end, a, of saidtube, said air-tube being preferably 'vulcanized before` the formationof the tire; a sleeve, D, of non-vulcanizing material arranged betweenthe lapped ends of the airtube; and an outer cover vulcanized over saidtube.

12. A process of making a pneumatic tire, which consists of forming aninner air-tube, having its ends joined with a non-vulcanizing material,building over it a cover and vulcanizing the cover on the air-tube, saidair-tube being in ated during the process of vulcanization.

In testimony whereof I athx my signature in presence of two witnesses.

JOSEPH. Gr.l MOOMY.

Witnesses:

H. C. LORD, R. F. LANZA.

